Hi folks - I would like to take overlay stats form a functional analysis on anatomical data for each of hundreds of participants, and then select 1 2d image from the anat brik to save and print as .jpg. So - I will obviously use a shell, rather than the AFNI viewer to do this.

I have looked into a number of different 3d programs that will let me select one 2D image from a 3D anatomy BRIK, but I can't seem to find one that does what I want. For example, I will overlay stats onto the anatomical BRIK for each participant and then select 1 medial 2d slice in the saggital plane to save as a .jpg.

Is there something I'm missing? Selecting sub-bricks from 3d+time briks is easy but I couldn't see a method for selecting a single 2D image from the 3d anat brik.
I looked at 3dcalc, 3dcopy, 3dmerge, etc...

thanks a lot, mb